adds PAIA driver
Login via PAIA works now
prepares methods to get loan information via PAIA
improves PAIA driver
refs #251: implements renewals into PAIA driver
refs #251: adds request of media to PAIA driver
refs #251: adds fees to driver, cleanup code a bit
refs #251: gets PPN for loans from old catalog
refs #251: improves fee display
refs #251: adds cancelation to PAIA driver
refs #251: adds password change to PAIA driver
refs #251, fixes minor problems and changes password also for logged in user